The Largest Free AI Prompt Library

Why we built PromptSpace

When I first tried Midjourney in 2023 my output was unusable. The model was clearly capable of beautiful work — every image-of-the-day on Reddit proved it — but my own prompts produced muddy, generic, weirdly cropped results. After a few hundred dollars of GPU credits and zero usable images, I started copying prompts from Reddit and Twitter verbatim. That worked. The pictures were stunning. But finding a prompt for the specific thing I needed — a clean product mockup, a particular cinematic mood, a specific anime style — meant scrolling through hundreds of forum posts hoping someone else had wanted the same thing.

That gap is what PromptSpace fills. Every prompt in our library was tested by us — generated, evaluated, refined, retested across multiple models — before being published. We organise them by what you want to make (cinematic shot, product mockup, anime portrait, luxury lifestyle, viral thumbnail) rather than by which model they were originally written for, because the same prompt structure works across Midjourney, DALL-E, FLUX and Stable Diffusion with only minor tweaks.

We also publish in-depth blog tutorials about prompt engineering, run free interactive AI tools on the site (no signup, no watermark, no rate limit), and maintain a marketplace of community-contributed Skills — reusable workflows for tasks like "ship a Next.js project to Vercel" or "research a topic across 30 sources." If a creator can use it, we want it on PromptSpace, free.

The site is funded entirely by display advertising on content pages — that is what keeps every prompt and every tool free. We do not gate features behind subscriptions, we do not sell prompts, we do not charge for our tools. If you find PromptSpace useful, the most valuable thing you can do is share it with another creator, link to a blog post you found helpful, or whitelist us on your ad blocker. That is genuinely all we ask.

The team behind PromptSpace is small — a founder + a part-time writer who handles long-form blog content + a part-time community manager who reviews submitted prompts. We respond to every email at [email protected] within 24-48 hours. If you have a prompt collection you want featured, a tool we should add, or a blog topic you want us to cover, that inbox is the fastest way to reach us.

What we cover, in depth

AI image prompts. Our largest collection. 4,000+ tested prompts spanning Midjourney v6 and v7, DALL-E 3, FLUX.1 Pro / Dev / Schnell, Stable Diffusion XL and 3, Google Gemini Imagen, Ideogram, Adobe Firefly, Leonardo AI, and Playground. Organised into hand-curated category pages (Cinematic, Anime, Luxury Lifestyle, Realistic Photo, Product Photography, Thumbnail, Viral, Instagram Reel, Midjourney specifics, AI DP / display picture) so you can browse by what you want to make instead of which model you happen to use.

AI video prompts. A growing collection of text-to-video and image-to-video prompts for Sora, Kling AI, Runway Gen-3, Pika Labs, LTX Video, Wan 2.2, and other open and paid services. AI video in 2026 is roughly where AI image was in 2022 — usable but model-sensitive — so prompts here include explicit guidance on which models the prompt was tested on and what tweaks to make for other backends.

Free AI tools. 11 built-in tools you can use directly on the site without signing up: AI image generator (FLUX.1 Schnell), art generator, tattoo designer, logo generator, pixel art, sticker generator, image upscaler (Real-ESRGAN), text-to-video, image-to-video, combined video generator, and a web scraper for SEO research. None of them watermark output, none rate-limit, none ask for a credit card.

Long-form blog. 159+ articles spanning prompt engineering tutorials, model comparisons (Midjourney v7 vs FLUX.1 Pro on photorealism, Sora vs Kling on motion stability), use-case guides (AI for tattoo design, AI for thumbnail design, AI for indie game art), workflow tutorials (Midjourney + Photoshop pipelines, FLUX + ComfyUI), and industry reporting (release notes, leaked-feature analysis). Posts are written by humans, edited by humans, and aggressively fact-checked.

Skills marketplace. Our newest section (launched May 2026): community-contributed and curator-vetted reusable workflows. A Skill is a self-contained instruction set that captures how to do something repeatable — deploy a Next.js project to Vercel, research a topic across 30 sources, prepare a podcast episode, audit a site for SEO, etc. Each Skill includes the trigger (when to use it), the steps (what to do in order), the pitfalls (what fails for most people), and verification (how to know it worked).

How we test prompts

Every prompt goes through five passes before it gets published. (1) Concept: someone on the team — usually responding to a request from a reader, a trending creator topic, or a gap we noticed in our coverage — drafts a prompt for a specific outcome. (2) Multi-model test: we generate at least 3 outputs each on Midjourney v7, FLUX.1 Pro, DALL-E 3, and Stable Diffusion 3. If the prompt only works on one model, we either rewrite it to be portable or note the model-specific tweaks. (3) Aesthetic review: a human reviewer evaluates output for composition, lighting, anatomy, hands, faces, and stylistic coherence. (4) Variation pass: we test obvious variations of the prompt (different subjects, different colors, different aspect ratios) to confirm the prompt structure generalises. (5) Publish: only prompts that pass all four prior steps make it onto the site. Roughly 30% of drafted prompts get rejected somewhere in the pipeline.

We also re-test our top 100 most-trafficked prompts every 6 months because models drift — Midjourney v6 results look different from v7 results, and FLUX.1 has had three weight updates in 2026 alone. When a popular prompt stops producing good output on a current model, we rewrite it and bump the lastmod on the page so search engines re-crawl.